Alpen Teton HD ED Binoculars - Alpen's exclusive PXA phase coating and SHR metallic coating on BAK4 glass is featured for an exquisitely bright and crisp image. The composite body design provides light weight, yet durable, performance for years of field tough performance. Each air to glass surface on the Teton binocular is fully multi coated for maximum brightness. Designed with long eye relief to provide full viewing performance and extra comfort for eye glass wearers. Larger than normal eye piece elements give you a full field view, allowing you to have a better eye on the action. Waterproof, sealed and nitrogen filled for guaranteed internal fog free performance. Includes a premium quality carrying case and quick release neck strap system.